Norbert Lubricants and Greases Frequently Asked Questions
What is Norbert?
Norbert is the brand name for a range of specialty synthetic lubricating materials, which offer several models of lubricating products.
Norbert lubricants have a wide range of applications, especially in applications with very high or very low temperatures, non-flammability, long-lasting, oxidation resistance, and chemical corrosion resistance.
What are the main differences between the various Norbert lubricants?
Each Norbert lubricant has its own unique characteristics to suit a specific industry or environment. The Norbert lubricant range includes:
- Norbert GPL General Purpose Lubricants, a cost-effective base lubricant for industrial applications.
- Norbert XHT Extreme High Temperature Lubricants are specially treated for greater thermal stability at temperatures exceeding 300 ° C (572 ° F).
- Norbert Aerospace Lubricants,对挥发性有着更严格的规范，相比于 GPL 系列润滑油，馏分更窄。
- Norbert VPF vacuum pump oil with excellent vapor pressure performance.
More information is listed in the Norbert Performance Lubricants product overview.
Norbert Does the lubricant contain silicon?
No. Norbert oils and greases do not contain any silicon and are produced without the use of silicon.
What are the different models of Norbert GPL lubricants available and what are their typical applications?
- Norbert GPL 10X series lubricants and Norbert GPL 20X series greases do not contain any additives and are suitable for components that require contact with most commonly used chemicals in industry. Typical applications include valves or bearings, seal ring shielding fluids, instrumentation, and oxygen systems.
- The Norbert GPL 21X series contains molybdenum disulfide for extreme pressure (EP) conditions and can be used in low-speed or high-load applications.
- The Norbert GPL 22X series contains sodium nitrite anti-corrosive and anti-wear additives that improve load-bearing performance and are ideal for applications in corrosive environments. Typical applications include automotive bearings, sealed pump bearings, motor bearings, and general purpose bearings.
- The Norbert GPL 29X series greases feature extreme pressure characteristics and use anti-rust additives for applications that require high load-carrying capacity and protection against rust.
- Norbert GPL 2EX series greases are formulated with unique anti-rust additives. This grease is similar to Norbert GPL 22X series greases, but it contains non-nitrite anti-rust additives.
Visit the Norbert GPL product page for the complete range of lubricants and their product data tables.
Norbert What are the components of a lubricant?
Norbert fluorinated oils are a series of low molecular weight, fluorine-terminated epoxide homopolymers of hexafluoropropylene. The polymer chain is fully saturated and contains only carbon, oxygen and fluorine, not hydrogen.
Norbert Performance Lubricant Applications
Norbert What applications can lubricants be used for?
Norbert lubricants are suitable for applications requiring non-flammability, oxidation resistance, material compatibility, high temperature stability and chemical resistance. Includes the following industries:
- car
- Aerospace
- Chemical processing
- Electronics and semiconductors
- Corrugated paper machines, pulp and paper making
- Industrial Maintenance, Repair and Operations (MRO)
Please refer to the Norbert Performance Lubricants Product Overview or the Norbert Lubricants Product Selection Guide for more information.
Norbert How is the NLGI consistency of each type of grease?
Grease is a mixture of base oil and thickener. Norbert grease uses a special very small particle size polytetrafluoroethylene (PTFE) for efficient thickening.
Base oils of different viscosity can be used in grease to meet the requirements of different temperature and load conditions.
Additives are often added to the grease to enhance rust resistance, improve load-bearing capacity, and reduce wear and tear. Our standard grease model is NLGI (American Grease Association) Grease No. 2; however, we can produce greases in NLGI models 000 to 6 upon customer request. For more information on NLGI model options, see the Norbert Performance Lubricants product overview.
What preparations are required before using Norbert lubricant in bearings?
Before filling the Norbert grease, the original grease, lubricating oil or anti-rust oil used during storage should be removed from the bearing. If non-perfluoropolyether (PFPE) lubricating oil or grease is left in the bearing, they will form carbon deposits at high temperatures, which may cause the acceleration bearing to fail.
If Norbert lubricant is used, is continuous lubrication required?
For most applications, the relubrication interval can be extended by months or years. For example, in bearing applications, a corrugated machine typically requires grease every three to twelve months, depending on the operating rate of the equipment. In sealed systems, Norbert lubricants are exceptionally durable, so there is no need for relubrication.
Norbert Can grease be mixed with other greases?
Although Norbert grease does not react with other greases or cause decomposition or any dangerous reactions, it does not prevent other lubricants from failing due to high temperatures and oxidation. Therefore, we do not recommend mixing Norbert lubricants with any non-perfluoropolyether (PFPE) lubricants or greases.
Characteristics of Norbert Performance Lubricants
Norbert What certifications have lubricants received?
The specific product model has received the following certifications:
- MIL-Spec PRF-27617 grease is approved for use in aerospace applications.
- NSF H1-certified lubricants can be used to lubricate food machinery that comes into contact with food.
- Independently tested and confirmed for use in LOX (liquid oxygen) and GOX (pure oxygen) by major oxygen manufacturers and testing organizations, including BAM.
- DIN 3536: Lubricants can be used for indoor installation, gas distribution, and gas pipeline valves.
- DIN EN 377: Lubricants can be used in gas appliances and related accessories.
Norbert What manufacturing certifications does the lubricant meet?
Norbert lubricants are manufactured based on the following certifications:
- Compliant with ISO 9001 certified quality management system
- ISO 14001 certified environmental management system
Norbert Is the lubricant flammable?
Do not. Norbert lubricating oil (grease) is non-flammable and has no flash point.
Norbert How stable is a lubricant when exposed to chemicals?
Norbert perfluoropolyether (PFPE) lubricants and greases thickened with polytetrafluoroethylene (PTFE) offer excellent chemical stability. Norbert lubricants and greases do not react with or cause degradation of most chemicals, with the exception of Lewis acids and alkali metals.
Norbert performance lubricants are not only resistant to oxygen and reactive gases, but also almost non-reactive with all chemicals used in most industries. For more information, see Norbert Lubricants: Chemical Stability or Gas Compatibility.
Norbert Is the lubricant compatible with non-metallic materials?
Yes. Norbert lubricants and greases have been used to lubricate plastic and elastomeric parts for over a decade. For more information, see the Norbert Lubricants Plastic and Elastomer Compatibility Document.
Contamination is one of the most serious challenges facing bearings. Chip, rust-proof oil, and other residues can limit lubrication performance, which can lead to failure. Proper handling of bearings and the use of quality lubricants, such as Norbert Performance Lubricants, can reduce equipment downtime and reduce maintenance costs.
What are the best practices for ensuring proper lubrication of bearings?
Follow these five steps and watch the video to ensure proper lubrication of bearings:
- Make sure the work area is clean and use appropriate tools.
- Remove bearing seal.
- Clean the bearings with a solvent and dry them.
- Apply grease to check if the grease is appropriate and ensure even distribution.
- Replace the sealing ring and cap.
For more information, please refer to the cleaning guide.
